典型相关分析在遗传育种中的应用——小麦产量因素、生理性状及形态性状的典型相关分析

本文介绍了典型相关分析的基本原理及分析方法,并以一组小麦的试验结果为例介绍了典型相关分析方法在遗传育种中的应用。把小麦的籽粒产量看作是有相互关系的三组性状(即产量因素、产量生理性状及形态性状)综合作用的结果,利用典型相关分析研究了这三组性状的相关。结果表明:这三组性状两两之间都存在显著的相关;产量因素与产量生理性状的相关主要是由收获指数与穗粒数、饱满度指数与千柱重的相关所引起的。其前两个典型相关系数包含了总相关信息的75%;产量因素与形态性状的相关主要是分蘖整齐度与穗粒重的相关引起的,前两个典型相关系数占总相关信息的84%;产量生理性状与形态性状的相关主要是由饱满度指数与分蘖整齐度的相关引起的,前两个典型相关系数占总相关信息的71%。

APPLICATION OF CANONICAL ANALYSIS IN CROP BREEDING CANONICAL ANALYSIS OF YIELD COMPONENTS,PHYSIOLOGLCAL AND MORPHOLOGLCAL CHARACTERS IN WINTER WHEAT

Mathematical method of canonical analysis and its application in Crop Breeding are described with the data of winter wheat.we derided the 15 characters related to grain yield of wheat in to 3 groups,i.e.yield components(group 1),physiological(group 2)and morphological (group 3)characters.Correlation analysis between the 3 groups and yield, between the every two groups are made with canonical analysis.The ca- nonical correlation coefficcent between group 3 and yield is much lower than those between group1,gr...